TxDOT Specifications

1995 Standard Specifications Book

Last Update (04/22/2002)

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DIVISION VI - LIGHTING AND SIGNING
(Items 637 to 659)

Table Of Contents

637 ALUMINUM SIGNS (TYPE G)
639 REVISING GUIDE SIGN MESSAGES
642 ALUMINUM SIGNS (TYPE O)
643 SIGN IDENTIFICATION DECALS
644 SMALL ROADSIDE SIGN ASSEMBLIES
646 SMALL ROADSIDE SIGN SUPPORTS
647 LARGE ROADSIDE SIGN SUPPORTS
648 REPLACING OR REFURBISHING ROADSIDE SIGNS
649 REMOVING OR RELOCATING ROADSIDE SIGN ASSEMBLIES
650 OVERHEAD SIGN SUPPORTS
651 REMOVING OVERHEAD SIGN SUPPORTS
652 HIGHWAY SIGN LIGHTING FIXTURES
654 SIGN WALKWAY
656 FOUNDATIONS FOR SIGNS, TRAFFIC SIGNALS AND ROADWAY ILLUMINATION ASSEMBLIES
658 DELINEATOR AND OBJECT MARKER ASSEMBLIES
659 REMOVING DELINEATOR AND OBJECT MARKER ASSEMBLIES

ITEM NO. - TITLE AND REQUIREMENTS

637 - ALUMINUM SIGNS (TYPE G)

SPECIFICATION REQUIREMENTS
1) The location and details of the fabrication, assembly and erection of the aluminum signs
    will be in accordance with the details shown on the plans.
2) The types and sizes of the aluminum signs must be shown on the plans.
3) Sign faces will be of the colors and types shown on the plans.
4) Sign messages will be of the sizes, types and colors shown on the plans.
5) The contractor's working drawings for each extruded aluminum sign will conform to the
    details shown on the plans.
6) Sign blanks will be of the sizes and shapes shown on the plans.
7) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Aluminum Signs (Type G) (Type Specified) (Size Specified)" M2

REFERENCE ITEMS
(636, 643)

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639 - REVISING GUIDE SIGN MESSAGES

SPECIFICATION REQUIREMENTS
1) The location and types of overhead and/or roadside guide sign messages to be revised
    must be shown on the plans.
2) The contractor's working drawings for signs to be modified will show the details of
    attaching messages to the sign face and the letter types and sizes, interline spacing and
    message arrangement in sufficient detail to verify conformance with the the plans.
3) Existing messages to be revised and/or new messages to be furnished by the contractor
    will be spaced and installed as shown on the plans.
4) Any existing message components that are removed and are designated to be reused
    must be shown on the plans.

OPTIONAL REQUIREMENTS
1) When required, new supplemental sheet aluminum panels will be in accordance with Item 636.
2) When required, new supplemental plywood signs will be in accordance with Item 634.

PAYMENT DESCRIPTION UNITS
1) "Revising Guide Sign Messages (Type Specified)" EA

REFERENCE ITEMS
None

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642 - ALUMINUM SIGNS (TYPE O)

SPECIFICATION REQUIREMENTS
1) The location and details of the fabrication, assembly and erection of the aluminum
    signs will be in accordance with the details shown on the plans.
2) Sign backgrounds will be of the colors and sheeting types shown on the plans.
3) Sign messages will be of the sizes, types and colors shown on the plans.
4) The contractor's working drawings for each overhead aluminum guide sign will conform
    to the details shown on the plans.
5) Sign blanks will be of the sizes and shapes shown on the plans.
6) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When required, aluminum signs as part of a message shall be shown on the plans and in 
    accordance with Item 636.

PAYMENT DESCRIPTION UNITS
1) "Aluminum Signs (Type O)" M2

REFERENCE ITEMS
None

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643 - SIGN IDENTIFICATION DECALS

SPECIFICATION REQUIREMENTS
None

OPTIONAL REQUIREMENTS
None

PAYMENT AND MEASUREMENT
Subsidiary to the various bid items in the contract.

REFERENCE ITEMS
None

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644 - SMALL ROADSIDE SIGN ASSEMBLIES

SPECIFICATION REQUIREMENTS
1) The location and types of roadside sign assemblies must be shown on the plans.
2) The details for fabrication and erection of small roadside sign assemblies must be 
    shown on the plans.
3) Foundations for the small roadside sign supports will be constructed to the details shown
    on the plans and are subsidiary to this item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Small Roadside Sign Assemblies (Type Specified)" EA

REFERENCE ITEMS
(421, 440, 634, 636, 646, 656)

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646 - SMALL ROADSIDE SIGN SUPPORTS

SPECIFICATION REQUIREMENTS
1) The locations of the small roadside sign supports must be shown on the plans.
2) The types and sizes of the small roadside sign supports must be shown on the plans.
3) The details for the fabrication and erection of steel supports used for small roadside
    sign supports will be shown on the plans.
4) The material for perforated fuse plates will be as shown on plans and will not have an 
    ultimate tensile strength exceeding that shown on the plans.
5) The lengths of each sign support and the sign mounting heights must be shown on the plans.
6) Foundations for the small roadside sign supports will be constructed to the details shown
    on the plans.
7) Stub posts will be of the type, spacing, orientation and projection shown on plans and will
    project above the finished grade as shown on the plans.
8) The upper post sections will be connected to the stub post sections by bolts or other
    connection devices as shown on the plans.
9) The connection bolts will be torqued as shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT AND MEASUREMENT
Subsidiary to the various bid items in the contract.

REFERENCE ITEMS
(441, 442, 445, 656, 660)

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647 - LARGE ROADSIDE SIGN SUPPORTS

SPECIFICATION REQUIREMENTS
  1) The locations of the large roadside sign supports must be shown on the plans.
  2) The types and sizes of the large roadside sign supports must be shown on the plans.
  3) The details for the fabrication and erection of the steel supports used for large 
      roadside sign supports will be shown on the plans.
  4) The material for perforated fuse plates will be as shown on the plans and will not have
      an ultimate tensile strength exceeding that shown on the plans.
  5) The lengths of each sign support and the sign mounting heights must be shown on the plans.
  6) Stub posts will be of the type, spacing, orientation and projection shown on the plans.
  7) The upper post sections will be connected to the stub post sections by bolts or other 
      connection devices as shown on the plans.
  8) The connection bolts will be torqued as shown on the plans.
  9) Foundations for the large roadside sign supports will be constructed to the details shown
      on the plans and will be paid for under Item 656.
10) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Large Roadside Sign Supports (Type Specified) (Size Specified)" KG

REFERENCE ITEMS
(441, 442, 445, 656)

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648 - REPLACING OR REFURBISHING ROADSIDE SIGNS

SPECIFICATION REQUIREMENTS
1) The locations of the existing roadside signs to be replaced or refurbished must be
    shown on the plans.
2) Refurbishing the roadside signs can include new messages, sign panels and mounting
    hardware when shown on the plans.
3) New sign panels, button copy, reflectorized legend and/or supplemental signs will be
    installed as shown on the plans.
4) Any sign components that are removed and are to be reused will be shown on the plans.
5) Any sign components that are removed and are to be salvaged and become property
    of the state will be shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Replacing Large Roadside Signs" EA
2) "Replacing Small Roadside Signs" EA
3) "Refurbishing Large Roadside Signs" EA
4) "Refurbishing Small Roadside Signs" EA

REFERENCE ITEMS
(634, 636, 637, 643)

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649 - REMOVING OR RELOCATING ROADSIDE SIGN ASSEMBLIES

SPECIFICATION REQUIREMENTS
1) The locations of the existing roadside sign assemblies to be removed or relocated must
    be shown on the plans.
2) New foundations will be constructed to the details shown on the plans.
3) Any sign components that are removed and are to be reused must be shown on the plans.
4) Any sign components that are removed and are to be salvaged and become property of
    the state must be shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Removing Large Roadside Sign Assemblies" EA
2) "Removing Small Roadside Sign Assemblies" EA
3) "Relocating Large Roadside Sign Assemblies" EA
4) "Relocating Small Roadside Sign Assemblies" EA

REFERENCE ITEMS
(445, 634, 636, 637, 643, 646, 647, 656)

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650 - OVERHEAD SIGN SUPPORTS

SPECIFICATION REQUIREMENTS
1) Locations of the overhead sign support structures must be shown on the plans.
2) The types, span lengths and vertical clearances of the overhead sign supports must be
    shown on the plans.
3) The details for the fabrication and erection of overhead sign supports must be shown
    on the plans.
4) Concrete overhead sign support columns and/or spans will be constructed to the details as
    shown on the plans.
5) Foundations for the overhead sign supports will be constructed to the details shown on the
    plans and will be paid for under Item 416.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Overhead Sign Supports (Type Specified) (Span Length Specified)" EA

REFERENCE ITEMS
(420, 441, 442, 445, 449, 618)

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651 - REMOVING OVERHEAD SIGN SUPPORTS

SPECIFICATION REQUIREMENTS
1) Locations of the overhead sign supports to be removed must be shown on the plans.
2) The overhead sign supports that are removed and designated to be reused or salvaged
    must be shown on the plans.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Removing Overhead Sign Supports" EA

REFERENCE ITEMS
None

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652 - HIGHWAY SIGN LIGHTING FIXTURES

SPECIFICATION REQUIREMENTS
1) The locations of highway sign lighting fixtures must be shown on plans.
2) The following Statewide Standard Details Sheets are required for the installation details
    of highway sign lighting fixtures:

  • SL(MV)-93A(M)     Mercury Vapor Sign Lighting Fixture
  • SL(1)-95A(M)         Sign Lighting Electrical Details

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Highway Sign Lighting Fixtures (Type Specified)" EA

REFERENCE ITEMS
(616)

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654 - SIGN WALKWAY

SPECIFICATION REQUIREMENTS
1) The location of the sign walkway must be shown on the plans.
2) The width, length and type of sign walkway must be shown on the plans.
3) The sign walkway will be fabricated and erected in accordance with the details shown on the plans.
4) This is a plans quantity measurement Item.

PAYMENT DESCRIPTION UNITS
1) "Sign Walkways (Type Specified) (Width Specified)" M

REFERENCE ITEMS
(441, 445, 650)

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656 - FOUNDATIONS FOR SIGNS, TRAFFIC SIGNALS AND ROADWAY ILLUMINATION ASSEMBLIES

SPECIFICATION REQUIREMENTS
1) The types of the concrete foundations must be shown on the plans.
2) Locations of the concrete foundations must be shown on the plans.
3) This is a plans quantity measurement Item.
4) The following Statewide Standard Details Sheets are required for the design details and
    construction of foundations for signs, traffic signals and roadway illumination assemblies:

  • RID(3)-93B(M)     Roadway Illumination Details
  • TS-FD-96(M)     Traffic Signal Pole Foundation

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Foundations for Large Roadside Sign Supports (Type Specified) 
(Size Specified)" M, M3
2) "Foundations for Traffic Signals (Type Specified) (Size Specified)" M, M3 
3) "Foundations for Roadway Illumination Assemblies (Type Specified)
(Size Specified)" M, M3

REFERENCE ITEMS
(400, 416, 420, 421, 440, 449, 618, 644)

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658 - DELINEATOR AND OBJECT MARKER ASSEMBLIES

SPECIFICATION REQUIREMENTS
1) The delineators and object marker assemblies will be installed at locations shown on
    the plans or as directed by the Engineer.
2) The color and type of reflector unit(s) for the delineator and/or object marker assemblies
     must be shown on the plans.
3) Winged channel posts and flexible delineator posts will be installed such that the reflector
    units and/or reflectorized panels will be at the height shown on the plans.
4) The minimum embedment depth for the winged channel posts must be shown on the plans.
5) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
1) When galvanizing is required, it will be in accordance with Item 445.

PAYMENT DESCRIPTION UNITS
1) "Delineator Assemblies (Type Specified) (Color Specified)" EA
2) "Object Marker Assemblies (Type Specified) (Color Specified)" EA

REFERENCE ITEMS
(660)

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659 - REMOVING DELINEATOR AND OBJECT MARKER ASSEMBLIES

SPECIFICATION REQUIREMENTS
1) Locations of the delineator and/or object marker assemblies to be removed must be
    shown on the plans.
2) A note must be shown on plans to notify the contractor that posts which are deemed 
    by the Engineer to be salvageable will be removed so that they will not be damaged by
    the Contractor's forces.
3) This is a plans quantity measurement Item.

OPTIONAL REQUIREMENTS
None

PAYMENT DESCRIPTION UNITS
1) "Removing Delineator and Object Marker Assemblies" EA

REFERENCE ITEMS
None

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